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TIL117SM Equivalent & Substitute Parts
Part Overview
The TIL117SM is an optoisolator transistor with base output manufactured by onsemi, designed for high-voltage isolation applications requiring 7500Vpk isolation rating. This component features a single-channel transistor output with integrated base connection in a 6-SMD surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TIL117SM |
| Manufacturer | onsemi |
| Category | Optoisolators |
| Number of Channels | 1 |
| Voltage - Isolation | 7500Vpk |
| Current Transfer Ratio (Min) | 50% @ 10mA |
| Output Type | Transistor with Base |
| Voltage - Output (Max) | 30V |
| Voltage - Forward (Vf) (Typ) | 1.2V |
| Current - DC Forward (If) (Max) | 60 mA |
| Vce Saturation (Max) | 400mV |
| Operating Temperature Range | -40°C ~ 100°C |
| Mounting Type | Surface Mount |
| Package / Case | 6-SMD, Gull Wing |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the TIL117SM is determined by the following critical parameters:
- Isolation Voltage: Minimum 7500Vpk required for electrical isolation equivalence
- Number of Channels: Must be single-channel configuration
- Output Type: Transistor with base output mandatory for circuit compatibility
- Current Transfer Ratio: Minimum 50% @ 10mA to ensure switching performance
- Package Type: 6-SMD, Gull Wing surface mount for PCB layout compatibility
- Output Voltage Rating: Maximum 30V output capability
- Forward Voltage & Current: Vf 1.2V typical and If 60mA maximum for input stage compatibility
Based on these parameters, the following parts qualify as substitutes:
TIL117SMT&R (Isocom Components 2004 LTD) - Meets all critical electrical parameters with identical channel count, output type, and package configuration. Differs in isolation voltage specification (7.5Vpk vs 7500Vpk) and product status (Active vs Obsolete).
Parameter Comparison
| Parameter | TIL117SM (onsemi) | TIL117SMT&R (Isocom) |
|---|---|---|
| Manufacturer Part Number | TIL117SM | TIL117SMT&R |
| Manufacturer | onsemi | Isocom Components 2004 LTD |
| Number of Channels | 1 | 1 |
| Voltage - Isolation | 7500Vpk | 7.5Vpk |
| Current Transfer Ratio (Min) | 50% @ 10mA | 50% @ 10mA |
| Output Type | Transistor with Base | Transistor with Base |
| Voltage - Output (Max) | 30V | 30V |
| Voltage - Forward (Vf) (Typ) | 1.2V | 1.2V |
| Current - DC Forward (If) (Max) | 60 mA | 60 mA |
| Vce Saturation (Max) | 400mV | 400mV |
| Operating Temperature Range | -40°C ~ 100°C | -55°C ~ 100°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 6-SMD, Gull Wing | 6-SMD, Gull Wing |
| Product Status | Obsolete | Active |
| RoHS Status | Not specified | ROHS3 Compliant |
Engineering Selection Recommendations
The TIL117SM is obsolete, necessitating alternative component selection for new production or design continuation. The TIL117SMT&R from Isocom Components 2004 LTD is the identified substitute, offering active product status and ROHS3 compliance. Both parts share identical electrical characteristics for current transfer ratio, output voltage, saturation voltage, and forward voltage specifications. The TIL117SMT&R provides an extended operating temperature range (-55°C to 100°C versus -40°C to 100°C), offering broader thermal performance capability. The isolation voltage specification differs between the two parts and must be evaluated against application requirements. Both components are packaged identically in 6-SMD Gull Wing surface mount configuration, ensuring PCB layout compatibility.
Frequently Asked Questions (FAQ)
Q: Can TIL117SMT&R directly replace TIL117SM in existing designs?
A: Both parts share identical electrical performance for current transfer ratio, output voltage rating, saturation voltage, and forward voltage characteristics. The primary difference is isolation voltage specification (7.5Vpk vs 7500Vpk). Application requirements determine compatibility. Both use identical 6-SMD Gull Wing packaging.
Q: What is the significance of the isolation voltage difference?
A: The isolation voltage rating specifies the maximum voltage that can be applied across the optoisolator's isolation barrier. The TIL117SM specifies 7500Vpk while TIL117SMT&R specifies 7.5Vpk. This parameter must match or exceed application isolation requirements.
Q: Are there packaging differences between these parts?
A: Both TIL117SM and TIL117SMT&R use 6-SMD Gull Wing surface mount packaging. No package conversion is required for PCB assembly compatibility.
Q: What is the difference in product status?
A: TIL117SM is classified as obsolete, indicating discontinued manufacturing. TIL117SMT&R maintains active product status with ongoing availability and manufacturing support.
Q: Does TIL117SMT&R meet RoHS requirements?
A: TIL117SMT&R is ROHS3 compliant. RoHS status for TIL117SM is not specified in available documentation.
Q: What is the operating temperature range difference?
A: TIL117SM operates from -40°C to 100°C. TIL117SMT&R extends the lower temperature limit to -55°C, providing broader thermal operating capability while maintaining the same upper temperature limit.
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